# geometry

posted by .

A sign is in the shape of a rhombus with a 60° angle and sides of 9 cm long. Find its area to the nearest tenth

• geometry -

base * height = 9 * 9 cos 60 = 9*4.5

• sorry, too quick -

height = h
sin 60 = h/9
h = 9 sin 60
so
area = 81 sin 60 = 70.14

## Similar Questions

1. ### geometry

The sides of a rhombus with angle of 60° are 6 inches. Find the area of the rhombus.
2. ### geometry

what is the area of a rhombus with a 60 degree angle and sides 5 cm long?
3. ### geometry

A sign is in the shape of a rhombus with a 60° angle and sides of 2 cm long. Find the area of the sign to the nearest tenth.
4. ### geometry

A sign is in the shape of a rhombus with a 60° angle and sides of 2 cm long. Find the area of the sign to the nearest tenth.
5. ### geometry

what is the area of a rhombus with a 60 degree angle and sides 5 cm long?
6. ### Geometry

What is the area of a rhombus with a 60 degree angle and sides 5 cm long?
7. ### High Point

a sign is in the shape of rhombus with a 60 degree angle and sides of 9cm long. Find its are to nearest tenth?
8. ### Geometry

Find the area of a rhombus with a 45 degree angle and sides of 12m long?
9. ### Geometry

Two sides of a rhombus form a 120º angle. The length of each side is 6 in. Explain how to find the area of the rhombus, and then calculate the area. Leave your answer in simplest radical form.
10. ### math

fedrick ordered a new sign for her store. The sign has 4 sides . It also has 2 right angles. 1 acute angle , and 1 obtuse angle . What is the shape of the sign. 1. Hexagon 2. Trapezoid 3. rhombus 4. parallelogram

More Similar Questions